fn new(sink: impl ContextTraceSinkProtocol + 'static) -> Self

fn noop() -> Self

fn with_list_sink() -> Self

fn emit(&mut self, event: ContextEvent) -> ()

fn events(&self) -> &[ContextEvent]

fn clear(&mut self) -> ()

fn agent_start(&mut self, agent_id: &str, agent_name: &str, input: &str) -> ()

fn agent_end(&mut self, agent_id: &str, agent_name: &str, output: &str, duration_ms: u64) -> ()

fn tool_start(&mut self, tool_name: &str, args: serde_json::Value) -> ()

fn tool_end(&mut self, tool_name: &str, result: serde_json::Value, duration_ms: u64) -> ()